“I fail to understand why members of this committee or the American people should find any testimony that you give today to be truthful,” Omar said.

Abrams replied that Omar’s inquiries amounted to a “ridiculous question” and said the lawmaker’s comments were a “personal attack.”

In a contentious exchange before the House Foreign Affairs Committee on Wednesday, Democratic Rep. Ilhan Omar confronted Elliott Abrams, the Trump administration’s special envoy for Venezuela, over his role in US policy toward Central America in the 1980s – a period marked by brutal actions by US-backed forces in the region.

Omar began her remarks by mentioning Abrams’ 1991 guilty plea to charges of withholding information from Congress about his role in the Iran-Contra affair, in which the Reagan administration used the proceeds from illegal arms sales to Iran to fund the right-wing Contras of Nicaragua in their campaign against the country’s socialist government.

“I fail to understand why members of this committee or the American people should find any testimony that you give today to be truthful,” Omar said. Abrams was later pardoned by President George H.W. Bush, who was Reagan’s vice president.

Terry Ashe/Getty ImagesFormer Assistant Secretary of State Elliot Abrams being sworn in at Iran-Contra hearings.

Abrams began to reply and said Omar’s statement “wasn’t a question,” but he was quickly cut off. The two sparred before Omar moved to Abrams’ Senate testimony a few months after the December 1981 massacre in the Salvadoran village of El Mozote.

A Human Rights Watch report said Abrams in his testimony “artfully distorted several issues in order to discredit the public accounts” of the infamous massacre to downplay the Reagan administration’s role. The forces responsible for the 1981 mass killing were trained and armed by the US.

“In that hearing, you dismissed as communist propaganda a report about the massacre of El Mozote, in which more than 800 civilians, including children as young as two years old, were brutally murdered by US-trained troops,” Omar said on Wednesday. “During that massacre, some of those troops bragged about raping a 12-year-old girl[s] before they killed them. You later said that the US policy in El Salvador was fabulous achievement. Yes or no, do you still think so?”

Omar then asked Abrams if he would support “an armed faction within Venezuela that engages in war crimes, crimes against humanity, or genocide if you believed they were serving US interests, as you did in Guatemala, El Salvador, and Nicaragua?”

“I am not going to respond to that question, I’m sorry,” Abrams said. “I don’t think this entire line of questioning is meant to be real questions, and so I will not reply.”

“Whether under your watch a genocide will take place, and you will look the other way because American interests were being upheld is a fair question,” Omar said. “Because the American people want to know that any time we engage a country that we think about what our actions could be and how we believe our values are being furthered.”

“Will you make sure that human rights are not violated and that we uphold international and human rights?”

“I suppose there is a question in there,” Abrams responded, adding that the “entire thrust of American policy in Venezuela is to support the Venezuelan people’s effort to restore democracy to their country.”

Omar followed up, asking specifically if the interest of the US included protecting human rights and protecting people from genocide.

“That is always the position of the United States,” Abrams said.

Special Envoy for Venezuela Elliott Abrams and Rep. Ilhan Omar clash in testy exchange at House Foreign Affairs hearing.

"Whether…a genocide will take place and you will look the other way because American interests were being upheld is a fair question," she says. pic.twitter.com/YUZfvuCirF